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Preparation of Aluminum-Zirconium Master Alloy by Aluminothermic Reduction in Cryolite Melt

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Abstract

Al-Zr master alloy was prepared by aluminothermic reduction in cryolite melt without alumina impurity. The Al-Zr master alloy was characterized by x-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy. The composition of the master alloy was analyzed by inductively coupled plasma optical emission spectrometry. The results indicated that Al-Zr master alloy with high purity could be obtained when byproduct Al2O3 was dissolved in the cryolite melt. The Al-Zr alloy was embedded in the Al matrix in the form of Al3Zr phase with long rod or tetragonal morphology due to temperature variation. Finally, we obtained Al-Zr alloy with 7 wt.% Zr by aluminothermic reduction for 90 min in cryolite melt at 980°C.

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Acknowledgements

The authors would like to acknowledge financial support from the Fundamental Research Funds for the Central Universities (N162503001, N150204010), National Natural Science Foundation of China (51434005, 51529401), and NEU Postdoctoral Foundation (20170307).

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Authors and Affiliations

  1. School of Metallurgy, Northeastern University, Shenyang, 110816, China

    Fengguo Liu, Chenliang Ding, Wenju Tao, Xianwei Hu, Bingliang Gao, Zhongning Shi & Zhaowen Wang

  2. Key Laboratory for Ecological Utilization of Multimetallic Mineral (Ministry of Education), Shenyang, 110004, China

    Fengguo Liu, Wenju Tao, Xianwei Hu, Bingliang Gao, Zhongning Shi & Zhaowen Wang

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  1. Fengguo Liu
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  2. Chenliang Ding
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  3. Wenju Tao
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  4. Xianwei Hu
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  5. Bingliang Gao
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  6. Zhongning Shi
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  7. Zhaowen Wang
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Correspondence to Zhaowen Wang.

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Liu, F., Ding, C., Tao, W. et al. Preparation of Aluminum-Zirconium Master Alloy by Aluminothermic Reduction in Cryolite Melt. JOM 69, 2644–2647 (2017). https://doi.org/10.1007/s11837-017-2548-7

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  • DOI: https://doi.org/10.1007/s11837-017-2548-7

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